2106163565 has 8 divisors (see below), whose sum is σ = 2757159648. Its totient is φ = 1531755280.

The previous prime is 2106163537. The next prime is 2106163571. The reversal of 2106163565 is 5653616012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2106163565 - 2¹² = 2106159469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19146887 + ... + 19146996.

It is an arithmetic number, because the mean of its divisors is an integer number (344644956).

Almost surely, 2^2106163565 is an apocalyptic number.

It is an amenable number.

2106163565 is a deficient number, since it is larger than the sum of its proper divisors (650996083).

2106163565 is a wasteful number, since it uses less digits than its factorization.

2106163565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38293899.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2106163565 is about 45892.9576841589. The cubic root of 2106163565 is about 1281.8307877632.

Adding to 2106163565 its reverse (5653616012), we get a palindrome (7759779577).

The spelling of 2106163565 in words is "two billion, one hundred six million, one hundred sixty-three thousand, five hundred sixty-five".